Did you know that every time you look at a skyscraper, a bridge, or even the screen in your hand, you are seeing the power of shapes and measurements in action? This is the world of geometry. At its ...

There’s a rather beautiful algorithm for finding the greatest common divisor of two positive integers. For example, the greatest common divisor of 120 and 105 is 15. It’s clear that 15 is a divisor of ...

This is an implementation of the Karatsuba polynomial multiplication algorithm in the LEGv8 assembly language, a RISC ISA part of the ARM architecture family. This was done as my final project for ECE ...

A basic feature of number theory, prime numbers are also a fundamental building block of computer science, from hashtables to cryptography. Everyone knows that a prime number is one that cannot be ...

The YubiKey 5, the most widely used hardware token for two-factor authentication based on the FIDO standard, contains a cryptographic flaw that makes the finger-sized device vulnerable to cloning when ...

The YubiKey 5, the most widely used hardware token for two-factor authentication based on the FIDO standard, contains a cryptographic flaw that makes the finger-size device vulnerable to cloning when ...

The Utils.modInv function internally uses 26 as the modulus rather than the argument y. The bug is not externally visible because it's used in the Affine Decode operation, which uses an alphabet with ...